Apparel Automotive Home Improvement Sports & Outdoors Tech


Our site uses ads and affiliate links to generate revenue. If you make a purchase through one of our links we may earn an affiliate commission.

Harbor Freight New Product Alert! Thunderbolt 18 Watt Foldable Solar Panel (57968)

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.





Harbor Freight put out an e-mail recently announcing a new product that they have released. The e-mail featured the Thunderbolt 18 watt solar panel #57968. This is a folding solar panel that includes 2 USB ports with a 3A output max. The price is $94.99.

  • Two high-efficiency monocrystalline solar cells for maximum output
  • Charges a typical smartphone in 2.5 to 5 hours and most large tablets in 4 to 10 hours
  • Rugged build to withstand harsh weather


  • Below are some similar items available on Amazon that you will easily see are a much better value than the Harbor Freight Thunderbolt.

    30W Foldable Solar Panel Solar Charger IP65 Waterproof Portable Solar Panel Multiple Outputs DC/USB/Type-C for Portable Power Station Generator, Phone, Laptop,Tablets,Power Bank, etc
    42 Reviews
    30W Foldable Solar Panel Solar Charger IP65 Waterproof Portable Solar Panel Multiple Outputs DC/USB/Type-C for Portable Power Station Generator, Phone, Laptop,Tablets,Power Bank, etc
    • šŸš™ć€High Compatibility怑 The wide compatibility makes portable solar panel possible to charge almost all electronic products, such as mobile phones/tablets/laptops/power banks...
    • šŸ“±ć€Multiple-Port Smart Charging Technology怑 30W 18V solar panels use 3-port smart charging technology to charge at the same time. Equipped with 1*DC, 1*USB, 1*TYPE-C ports,...
    • ā˜€ć€High Conversion Efficiency怑Small solar panel is covered by monocrystalline silicon solar cells, and adopts multi-layer battery technology to produce better energy...
    • ā˜”怐Waterproof and High Durability怑Solar panel is IP65 waterproof it is protected from rain or wet fog. Original thermoforming lamination technology reduces thickness and...
    • šŸŽ’怐Portable and Foldable Design怑The folded size of this 30W solar Panels charger is only 11.2*7.5*0.5 inches/2.6 pounds. It can be easily stuffed into the backpack, easy to...
    MOOLSUN Portable Solar Charger 24W Solar Panel Charger with 3 USB Output Ports ETFE Foldable Camping Travel Charger for Tablet Ipad iPhone and More
    227 Reviews
    MOOLSUN Portable Solar Charger 24W Solar Panel Charger with 3 USB Output Ports ETFE Foldable Camping Travel Charger for Tablet Ipad iPhone and More
    • šŸŸ©Foldable and Portable: The foldable design makes the 24W solar panel charger have a smaller folding size and portability, which can be taken anywhere you need;
    • šŸŸ©High Quality With High Efficiency: Our solar panel charger is made of high-quality materials, and the solar cells are carefully selected. ETFE, EVA, PCB boards are all...
    • šŸŸ©Multifunctionality with Unique 3 USB Port Controller: Our 5V solar panel charger has a unique 3 USB (QC) voltage controller, which can be used to quickly charge 3 USB devices...
    • šŸŸ©Double design with long service life:ETFE surface and precision stitching are strong and durable, suitable for outdoor use, ETFE surface better protects the solar panel;
    • šŸŸ©Long Assurance: Package included 1*24W Foldable Solar Panel Charger.We take every customer's satisfaction very seriously. If for any reason our solar panel does not meet your...
    Nekteck 21W Solar Charger(5V/3A Max) with 2 USB Port, IPX4 Waterproof Portable and Foldable Hiking Camping Gear SunPower USB Solar Panel Compatible with iPhone, iPad, Samsung Galaxy, and More
    2,137 Reviews
    Nekteck 21W Solar Charger(5V/3A Max) with 2 USB Port, IPX4 Waterproof Portable and Foldable Hiking Camping Gear SunPower USB Solar Panel Compatible with iPhone, iPad, Samsung Galaxy, and More
    • 怐High-Efficieny怑The high-efficiency of its three solar Monocrystalline panels cell is based on SunPower Maxeon technology, that allows the usb solar charger to reach 21%-24% of...
    • 怐Advanced Smart IC Chip Technology怑 The Microchip of Nekteck solar phone charger support to detects the electronic devices plugged into the USB ports for fast charging two...
    • 怐Portable and Foldable怑The 6.3x 11.1x 1.06 inch (when folded ) small size and 17.3-ounce design that can easily squeeze in your backpack offers portability and simplicity, and...
    • 怐Dualable Design怑The canvas surface and precision stitching withstand rugged for outdoor use and the PET polymer cover that guarantees IPX4 waterproof level protection will...
    • 怐Package怑Nekteck 21W Portable Solar Charger, 2.6ft(80cm)Micro USB Cable, User Manual
    Solar Panel Charger, Solorage 21W Solar Charger with 2 USB Ports and 3 Foldable Solar Panels Portable Solar Phone Charger for Camping, Hiking Compatible with iPhone, iPad Pro/Air/Mini, Samsung Galaxy
    147 Reviews
    Solar Panel Charger, Solorage 21W Solar Charger with 2 USB Ports and 3 Foldable Solar Panels Portable Solar Phone Charger for Camping, Hiking Compatible with iPhone, iPad Pro/Air/Mini, Samsung Galaxy
    • ?SMART CHARGING TECHNOLOGY: Built-in intelligent chip and voltage regulator technology that can detects your device then deliver its fastest possible charging speed. Solorage solar...
    • ?HIGH ENERGY CONVERSION: 21 watt SunPower folding solar panel is 21.5 percent - 23.5 percent of conversion efficiency, providing the charging speed up to 2.4A per port or 3A...
    • ?PORTABLE: Compact size (10.6 Ɨ 6.3Ɨ 1.3in folded) and lightweight (21 oz) design make the portable solar panel bag ideal for hiking, camping, fishing or other outdoor...
    • ?DURABLE: Solar panels seam into rugged polyester canvas and industrial-strength PET polymer surface protects it from occasional rain or wet fog.
    • ?WIDE COMPATIBILITY: This solar charger is compatible with almost all the 5V Android devices, cell phone, IOS devices (needs extra appleā€™s cable), Power Pack, PSP, Digital...

    Promotion availability and prices can change at any time on Amazon. Information included on this page is accurate as of 2023-02-04 at 08:50 CST.